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Astronaut Christina Koch (@Astro_Christina) sets a record today, Dec. 28, for the longest single spaceflight by a woman, eclipsing the former record of 288 days set by Peggy Whitson of @nasaastronauts. Her long-duration mission is helping us learn how to keep astronauts healthy for deep space exploration to the Moon and Mars.
#CongratsChristina on reaching new heights! Swipe left to see a few photos Christina captured from her vantage point aboard the @iss.
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Space Center
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